Noryl Sheet — Modified PPO Flat Stock for Electrical Applications
Noryl sheet provides flat stock for machined electrical enclosures, switchgear panels, terminal blocks, connector housings, and structural electrical components requiring UL 94 V-0 flame rating and excellent dimensional stability. Noryl EN265 (natural tan/gray) is the standard electrical grade sheet; GFN3 (black, 30% glass-filled) offers higher stiffness and heat deflection temperature for structural-plus-electrical applications.
At a glance:
- Thicknesses: 0.125" – 4.0" in standard 24" × 48" sheets
- Primary grade: EN265 (natural tan/gray, V-0) — electrical standard
- Structural grade: GFN3 (black, V-0, glass-filled) — 2.6× stiffer than EN265
- UL 94 V-0 at ≥0.030" minimum wall for both grades
- Water absorption 0.07% — precise machined dimensions maintained in humid environments
- CNC milling with standard carbide; GFN3 requires carbide tooling
Sheet vs Rod: When to Use Sheet
Use Noryl sheet for:
- Flat prismatic components (housings, covers, panels, terminal blocks)
- Components requiring multiple intersecting bores, pockets, or slots machined from plate
- Large-format flat parts where the plate form minimizes waste
Use Noryl rod for:
- Cylindrical components (bobbins, standoffs, coil formers, spacers)
- Parts primarily defined by turned OD and bore dimensions
Available Sheet Sizes and Tolerances
Noryl EN265 Sheet
| Thickness | Thickness Tolerance | Standard Sheet Size |
|---|---|---|
| 0.125" | ±0.010" | 24" × 48" |
| 0.187" | ±0.010" | 24" × 48" |
| 0.250" | ±0.015" | 24" × 48" |
| 0.375" | ±0.015" | 24" × 48" |
| 0.500" | ±0.020" | 24" × 48" |
| 0.750" | ±0.020" | 24" × 48" |
| 1.0" | ±0.030" | 24" × 48" |
| 1.5" | ±0.030" | 24" × 48" |
| 2.0" | ±0.040" | 24" × 48" |
| 3.0" | ±0.040" | 24" × 48" |
| 4.0" | ±0.060" | 24" × 48" |
Thinner gauges (0.030"–0.093") may be available as sheet stock for specific electrical applications — confirm with Ready Plastics.
Noryl GFN3 Sheet
GFN3 sheet is less commonly stocked than EN265 sheet. Primary stocked thicknesses: 0.250"–1.0". Confirm availability for other thicknesses.
Primary Applications for Noryl Sheet
Switchgear Panels and Electrical Enclosures
Noryl EN265 sheet machined into switchgear panels, bus bar covers, and equipment housings provides V-0 flame protection at the required minimum wall thickness. Standard CNC milling produces mounting holes, cutouts, and slots efficiently.
Terminal Blocks and Connector Housings
Multi-gang terminal blocks and connector housings machined from Noryl sheet use the material's low dielectric constant to minimize cross-talk between adjacent conductors, and V-0 rating to meet the requirements of IEC 60947 (low-voltage switchgear) and similar standards.
RF and Microwave Components
Sheet machined into waveguide flanges, filter housings, and antenna substrate carriers uses EN265's low, stable dielectric constant (2.65 at 1 MHz–1 GHz) for predictable electrical performance.
Machining Noryl Sheet
EN265 (unfilled):
- Face milling (finish): 350–450 SFM; 0.002–0.004 IPT
- Slot/pocket: 200–300 SFM; 2-flute carbide
- Tolerances: ±0.001"–0.002" on milled features
GFN3 (glass-filled):
- Face milling (finish): 250–350 SFM; coated carbide
- Reduced feed rates compared to EN265 to manage glass fiber abrasion
- Flood coolant recommended for GFN3 to extend insert life
Full machining parameters: Noryl machining guide.
Quote Noryl EN265 or GFN3 sheet in your thickness
Request a Quote →More related guides
Applications
Industries
Compare to other materials
Frequently asked questions — Noryl FAQ